The house was unoccupied, the family on vacation. They probably had lots of food put away.
An old dog followed him as he broke in. He loaded up in the kitchen, but slipped on something and fell.
He was hurting bad, couldn't move at all. The old dog came closer, after the food he dropped. He hollered but nobody came. The dog began to eat: the last thing he would ever see. At least the dog wouldn't go hungry.